In industries such as chemical processing, environmental protection, and electroplating, reliable and corrosion-resistant liquid handling equipment is essential for efficient operations. The LGX series vertical chemical pump—including the submersible W-type for tank applications—is a versatile and durable solution for handling acidic and alkaline fluids. Its working principle, key features, advantages, and applications are outlined below.
1. Core Working Principle: Centrifugal Force + Optimized Structure
The LGX vertical chemical pump operates on a centrifugal pumping principle: the motor drives the impeller at high speed, imparting kinetic energy to the fluid. The liquid is flung from the impeller center to the edges, creating a vacuum at the eye of the impeller that continuously draws in fluid, ensuring smooth, uninterrupted flow.
To handle corrosive acids and alkalis, the pump incorporates critical structural optimizations:
Dry shaft seal design: Isolates the pump chamber from the motor bearings, preventing corrosive gases and liquids from reaching the motor. This ensures long-term, reliable operation while maintaining the advantages of centrifugal pumping.
2. Key Features: Flexible Parameters + Reliable Performance
Corrosion-Resistant Materials and Integrated Sealing
Pump body materials: PVDF, FRPP, CFRPP, CPVC
PVDF: Excellent resistance to strong acids, alkalis, and high temperatures.
FRPP: Balanced corrosion resistance and cost-efficiency for standard acid/alkali applications.
CFRPP: Enhanced structural strength to withstand pressure.
CPVC: Ideal for high-purity chemical handling in pharmaceutical and precision industries.
Integrated molding: Prevents leaks caused by material inconsistencies.
Temperature tolerance: Up to 70°C, suitable for most industrial fluids.
Multiple Specifications for Diverse Applications
Inlet diameters: 50mm (2”), 65mm (2.5”), 80mm (3”), 100mm (4”)
Small diameters for precise delivery, large diameters for high-flow circulation.
Fluid density support: VK (1.1), VP (1.4)
Motor power options: 1HP–20HP (1, 2, 3, 5, 7.5, 10, 15, 20 HP)
Low HP for short-distance, low-pressure circulation
High HP for long-distance, high-pressure delivery
Frequency compatibility: 50Hz (marked 5) and 60Hz (marked 6)
O-ring material options: VITON (V), NBR (N), EPDM (E)
Ensures chemical compatibility and enhances safety.
Safety Design for Reduced Maintenance Risks
Dry-run tolerance: Can operate safely even when tank levels drop, avoiding motor overheating or mechanical damage.
Tank-out installation: Facilitates maintenance and reduces corrosion from aggressive environments.
3. Core Advantages: Solving Industrial Challenges
Durable and corrosion-resistant: Extended pump and motor lifespan reduces replacement costs and downtime.
Wide adaptability: Multiple materials, sizes, and power options minimize the need for custom pumps, covering both standard and extreme conditions.
Safe and low-maintenance operation: Dry-run protection and external installation simplify checks and reduce labor risks.
4. Typical Applications Across Industries
Acid and Alkali Circulation & Cooling
Circulation of sulfuric acid, hydrochloric acid, and other acidic/alkaline solutions.
Supports process equipment cooling and stable temperature maintenance in reactors and heat exchangers.
Industrial Spray Cleaning
Suitable for metal surface pickling, equipment degreasing, and precision cleaning.
Large-scale, high-pressure applications: 80–100mm diameter with 10–20HP motor.
Small-scale, low-pressure applications: 50–65mm diameter with 1–3HP motor.
Exhaust Gas Scrubbing Towers
Handles corrosive spray liquids and exhaust gases.
Dry shaft seal prevents acid/alkali gases from damaging the motor, ensuring continuous operation.
Continuous Electroplating
Maintains consistent circulation of metal-ion-containing acid/alkali plating baths.
Integrated molding and corrosion-resistant materials prevent leaks and contamination.
Multiple motor sizes (3–7.5HP) allow adaptation to different plating tank dimensions.
High-Purity and Precision Industries
Pharmaceutical, chemical, and semiconductor applications requiring ultra-clean conditions.
CPVC pump bodies and VITON O-rings minimize contamination, ensuring safe handling of high-purity fluids.
Summary:
The LGX vertical chemical pump combines scientifically engineered principles, robust features, precise advantages, and broad applicability. It addresses standard and challenging industrial tasks—including strong corrosives, high temperatures, and precision applications—providing reliable fluid handling for chemical, environmental, electroplating, and other high-demand industries.